linux-kernel - Re: [PATCH] usb: host: xhci: Fix potential memory leak in xhci_alloc_stream

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Message-ID: <Yr1HIPIMPHuH7Unv@kroah.com>
Date:   Thu, 30 Jun 2022 08:48:00 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jianglei Nie <niejianglei2021@....com>
Cc:     mathias.nyman@...el.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: host: xhci: Fix potential memory leak in
 xhci_alloc_stream_info()

On Thu, Jun 30, 2022 at 09:10:08AM +0800, Jianglei Nie wrote:
> xhci_alloc_stream_info() allocates stream context array for stream_info
> ->stream_ctx_array with xhci_alloc_stream_ctx(). When some error occurs,
> stream_info->stream_ctx_array is not released, which will lead to a
> memory leak.
> 
> We can fix it by releasing the stream_info->stream_ctx_array with
> xhci_free_stream_ctx() on the error path to avoid the potential memory
> leak.
> 
> Signed-off-by: Jianglei Nie <niejianglei2021@....com>
> ---
>  drivers/usb/host/xhci-mem.c | 11 ++++++++++-
>  1 file changed, 10 insertions(+), 1 deletion(-)

What commit id does this fix?

thanks,

greg k-h